Lesson 61

We were stuck in a traffic jam ____________ an accident.

• because

• because of

I was late to work ___________ my car didn't start.

• because

• because of

____________ our baby, my wife and I couldn't sleep last night.

• because

• because of

____________ they come later, I have to wait for them.

• because

• because of

I pass the exam ___________ I studied.

• because

• because of

Karla learned English ___________ his American boyfriend.

• because

• because of

He does his homework ____________ he has to do it.

• because

• because of

Tom couldn't go to school last class ____________ his sickness.

• because

• because of

It was snowing yesterday. My friend Maria crashed her car____________ the snow.

• because

• because of

____________ the noise of my neighbors, I couldn't sleep well.

• because

• because of